Chang Yun India Limited offers Multi Cone Synchroniser Ring. Chang Yun India Limited is an ISO/TS 16949: 2002 accredited company supplying a wide range of Synchroniser rings for the automotive industry. The Multi Cone Synchroniser Ring is used to synchronize drive gears and shafts in manual gearboxes, to ensure that equal evolutional speed between the shaft and the gear is reached while shifting operation. The Multi Cone Synchroniser Ring is available with an overall diameter size ranging up to 100 mm.